EP 1056039 A2 20001129 - Transmitter and receiver
Title (en)
Transmitter and receiver
Title (de)
Sende- und Empfangseinrichtung
Title (fr)
Dispositif d'émission et de réception
Publication
Application
Priority
DE 19923634 A 19990522
Abstract (en)
The transmitter/receiver (2) circuit apparatus is coupled to a coil (1) and the circuit is also coupled to a control stage (6). The transmitter/receiver arrangement includes a transmitter power amplifier (10) and a receiver amplifier (20). A signal from a trigger circuit (27) activates a pulse width modulation stage (9) which provides a signal to the transmission power amplifier..A transponder within the vicinity of the coil responds, and data is transferred to comparator stages (21) for identification.
Abstract (de)
Bei einer Sende- und Empfangseinrichtung, insbesondere für Identifikationssysteme, ist in unmittelbarer Nachbarschaft mindestens einer Spule eine Baugruppe angeordnet, die mindestens eine Sende-Endstufe und einen Empfangs-Verstärker enthält. <IMAGE>
IPC 1-7
IPC 8 full level
G06K 19/07 (2006.01); H01Q 1/22 (2006.01); H01Q 7/00 (2006.01); H01Q 7/08 (2006.01); H01Q 21/24 (2006.01); H01Q 23/00 (2006.01); H04B 1/38 (2006.01)
CPC (source: EP)
G06K 19/0723 (2013.01); H01Q 1/2225 (2013.01); H01Q 7/005 (2013.01); H01Q 7/08 (2013.01); H01Q 21/24 (2013.01)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 1056039 A2 20001129; EP 1056039 A3 20020123; DE 19923634 A1 20001207; JP 2000353974 A 20001219; KR 20010007102 A 20010126
DOCDB simple family (application)
EP 00107808 A 20000412; DE 19923634 A 19990522; JP 2000148425 A 20000519; KR 20000027420 A 20000522